More -Wmissing-variable-declarations fixes.

In addition to adding `static' where possible:

- bin/date: Move `retval' into extern.h to make it visible to date.c.
- bin/ed: Move globally used variables into ed.h.
- sbin/camcontrol: Move `verbose' into camcontrol.h and fix shadow warnings.
- usr.bin/calendar: Remove unneeded variables.
- usr.bin/chat: Make `line' local instead of global.
- usr.bin/elfdump: Comment out unneeded function.
- usr.bin/rlogin: Use _Noreturn instead of __dead2.
- usr.bin/tset: Pull `Ospeed' into extern.h.
- usr.sbin/mfiutil: Put global variables in mfiutil.h.
- usr.sbin/pkg: Remove unused `os_corres'.
- usr.sbin/quotaon, usr.sbin/repquota: Remove unused `qfname'.

1 files changed, 3 insertions, 3 deletions

diff --git a/usr.sbin/nfscbd/nfscbd.c b/usr.sbin/nfscbd/nfscbd.c
index ba09311..c9153b4 100644
--- a/usr.sbin/nfscbd/nfscbd.c
+++ b/usr.sbin/nfscbd/nfscbd.c
@@ -66,12 +66,12 @@ __FBSDID("$FreeBSD$");
 /* Global defs */
 #ifdef DEBUG
 #define	syslog(e, s)	fprintf(stderr,(s))
-int	debug = 1;
+static int	debug = 1;
 #else
-int	debug = 0;
+static int	debug = 0;
 #endif
 
-pid_t children;
+static pid_t	children;
 
 static void	nonfs(int);
 static void	reapchild(int);